blob: 8870b531ce0490e073a846f2baa773f1ea6fe726 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
package bezier.transforms.geom;
import bezier.geom.TDHPoint;
public class TDHRotation implements TDHTransform {
public final double theta;
public TDHRotation(double theta) {
this.theta = theta;
}
@Override
public TDHPoint transform(TDHPoint punkt) {
double x = (punkt.x * Math.cos(theta)) - (punkt.y * Math.sin(theta));
double y = (punkt.x * Math.sin(theta)) - (punkt.y * Math.cos(theta));
return new TDHPoint(x, y, punkt.z);
}
public double[][] matrix() {
return new double[][] { new double[] { Math.cos(theta), Math.sin(theta), 0 },
new double[] { -Math.sin(theta), Math.cos(theta), 0 }, new double[] { 0, 0, 1 } };
}
public TDHTransform invert() {
return new TDHRotation(-theta);
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
long temp;
temp = Double.doubleToLongBits(theta);
result = prime * result + (int) (temp ^ (temp >>> 32));
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
TDHRotation other = (TDHRotation) obj;
if (Double.doubleToLongBits(theta) != Double.doubleToLongBits(other.theta))
return false;
return true;
}
@Override
public String toString() {
return "TDHRotation [theta=" + theta + "]";
}
}
|
